UNI-T UT61E Simple Backlight Mod Help

[mozcelikors]

Hello guys,

I recently bought UNI-T UT61E meter with the suggestions from EEVblog, very happy with it.
I've seen a lot of mods that adds backlight with touch sensor to it.
I dont have so much time for modding.
I need to add simple backlights (prefereably whatever LEDS he uses in this one, it looks amazing: https://www.youtube.com/watch?v=0XJloF0Pcc8&feature=youtu.be)
All I need is when you switch on the meter, it stays on until you turn it Off. I dont need a sensor control for it.
How can I do such simplest mod given the information? I dont have experience hacking these meters. Can the guys with experience help me?
I need information like, what kind of LEDs I need to make it look as good as in the video I provided, what resistors, and where do I hook it up. I hope it's that simple as I do not have much time to do a complex mod.
Thanks in advance... Any help is appreciated greately..

A good reference:
http://www.diyaudio.com/forums/equipment-tools/257668-uni-t-ut61e-dmm-backlight-mod.html

[Shock]

If you look at this video. Ira T explains he uses 2 LEDs at the base of the display, in series, and connected (via switch) to a resistor and then to the battery.

Then if you read Ni5ei's post. Right below the negative battery contact on the board is a terminal labeled "V+" This is the 9V from the battery but switched on/off by the rotary dial. If you'd taken your + for the LED's from there it wouldn't be possible to leave the backlight switched on when you power the unit off.?

You can find photos from this thread here showing where to mount the LED's.

So turn the meter on, backlight comes on. Turn multimeter off backlight goes off. Possibly the simplest circuit you can use, aside from the possibility of getting specific voltage LED.

As to what LED's to use you can use anything that will fit. If you don't know set yourself a challenge to learn how to power them and change their brightness with a resistor.

[mozcelikors]

Thanks for the really helpful answer.

The reason I asked about the resistors was , since the same power goes into the circuity, I didnt want to damage anything due to overcurrent-draw.

[mozcelikors]

Done already guys, check the attachment.

2x SMD LEDS white, and a 100ohm resistor in series.

Do you have any advice for power saving or something?

[joeqsmith]

Hello guys,
...
All I need is when you switch on the meter, it stays on until you turn it Off. I dont need a sensor control for it.

...
Do you have any advice for power saving or something?

Well, you could turn it off.